my site is http://bearyhealthy.com, I need your help dp members, can someone tell me how to edit or delete forum postings on my site, it is a smf forum. My site has too many unrelated postings, spam, porn links or advertisement. Please help.
I would go to the simple machines forums and ask for help there as opposed to asking DPers. I think this is it http://www.simplemachines.org/community/
If you're an admin of that forum (which I believe you are) then you should have the permission to delete or edit posts. Just go to the post and look for the edit button when you're logged in as an administrator.
You could also change permissions such that people need to register to post. If you're having a hard time with SMF, try PHPBB - there you have multiple strategies you can use to combat spam (and even more on the way soon with PHPBB3 on the horizon)